| So far as I know, Miss Hannah Arendt
was the first person to define the essential difference between work and labor.
To be happy, a man must feel, firstly, free and, secondly, important. He cannot
be really happy if he is compelled by society to do what he does not enjoy
doing, or if what he enjoys doing is ignored by society as of no value or
importance. In a society where slavery in the strict sense has been abolished,
the sign that what a man does is of social value is that he is paid money to do
it, but a laborer today can rightly be called a wage slave. A man is a laborer
if the job A. he must have something to do B. he must realize the essential difference between work and labor C. he must feel free first of all D. he must do something valuable to society [单选题]4.153.第153题变压器的过电流保护,加装复合电压闭锁元件是为了()
A.提高过电流保护的可靠性 B.提高过电流保护的灵敏度 C.提高过电流保护的选择型 D.提高过电流保护的快速性 [判断题]正常监视状态是指火灾报警控制器接通电源后,无火灾报警、监管报警、故障报警、屏蔽、复位等发生时所处的工作状态。( )
A.正确 B.错误 [多项选择]我国对涉及( )的产品实施强制性认证制度。
A. 人类健康和安全 B. 动植物生命和健康 C. 环境保护 D. 公共安全 [名词解释]寄存器
[填空题]水准测量的基本原理就是利用一条( )来比较点位的高低。
[单项选择]一级目录结构的文件系统的主要特点是( )
A. 适用于多道程序设计 B. 适用于单用户系统 C. 无需把索引表放到磁盘上 D. 存取所有文件都无需用到索引表 [多项选择]以下关于库雷热的设计作品的描述，体现其极简主义风格有（）。
A. 超短迷你裙 B. 线条利落而犀利的几何型裁剪 C. 裙身轮廓简洁到了无以复加的地步 D. 没有任何多余的装饰和造型 [填空题]CRH380B动车组报24B5（线路断路器Q1损坏）时，会引起真空断路器、牵引变流器、<--NRC-->锁闭。
[简答题]操规规定：在长大上坡道上，应采用“先闯后爬，闯爬结合”的操纵方法。进入坡道前应提早增大机车牵引力，储备动能，进入坡道后应进行预防性撒砂，防止空转，并注意牵引电流不得超过（ ）。
我来回答: 提交
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